Patents by Inventor Motonari Udo
Motonari Udo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9821590Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: GrantFiled: December 19, 2016Date of Patent: November 21, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Patent number: 9798260Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.Type: GrantFiled: April 19, 2016Date of Patent: October 24, 2017Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventors: Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Patent number: 9757969Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: GrantFiled: November 30, 2016Date of Patent: September 12, 2017Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventors: Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara
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Publication number: 20170100954Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: ApplicationFiled: December 19, 2016Publication date: April 13, 2017Inventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Publication number: 20170080737Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: ApplicationFiled: November 30, 2016Publication date: March 23, 2017Applicant: Toshiba Tee Kabushiki KaishaInventors: Motonari UDO, Masahiro IKUTA, Kazuhisa TAKEDA, Tsuyoshi ITOU, Takayasu AOKI, Takafumi HARA
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Patent number: 9555657Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: GrantFiled: January 21, 2016Date of Patent: January 31, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Patent number: 9539843Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: GrantFiled: February 16, 2016Date of Patent: January 10, 2017Assignee: Toshiba Tec Kabushiki KaishaInventors: Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara
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Publication number: 20160231662Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.Type: ApplicationFiled: April 19, 2016Publication date: August 11, 2016Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: TAKAFUMI HARA, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Patent number: 9366983Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.Type: GrantFiled: March 13, 2014Date of Patent: June 14, 2016Assignee: TOSHIBA TEC KABUSHIKI KAISHAInventors: Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Publication number: 20160159131Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: ApplicationFiled: February 16, 2016Publication date: June 9, 2016Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Motonari UDO, Masahiro IKUTA, Kazuhisa TAKEDA, Tsuyoshi ITOU, Takayasu AOKI, Takafumi HARA
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Publication number: 20160152061Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: ApplicationFiled: January 21, 2016Publication date: June 2, 2016Inventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Patent number: 9291950Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: GrantFiled: December 18, 2013Date of Patent: March 22, 2016Assignee: Toshiba Tec Kabushiki KaishaInventors: Motonari Udo, Masahiro Ikuta, Kazuhisa Takeda, Tsuyoshi Itou, Takayasu Aoki, Takafumi Hara
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Patent number: 9277075Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: GrantFiled: May 27, 2014Date of Patent: March 1, 2016Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Patent number: 9217941Abstract: According to one embodiment, a method of manufacturing an erasable toner includes washing toner particles including therein a coloring material that is erasable by heating and a binder resin to obtain a toner cake having the amount of water of 20% by weight to 60% by weight, and drying the toner cake at 40° C. or more and at a temperature which is lower than the complete color erasing temperature of the toner particles by 30° C. or more.Type: GrantFiled: January 10, 2014Date of Patent: December 22, 2015Assignee: Toshiba Tec Kabushiki KaishaInventors: Tsuyoshi Itou, Kazuhisa Takeda, Yasuhito Noda, Takayasu Aoki, Masahiro Ikuta, Takafumi Hara, Motonari Udo
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Publication number: 20150350477Abstract: In accordance with one embodiment, a color erasing apparatus comprises a conveyance path, a color erasing section and a control section. The conveyance path conveys a sheet. The color erasing section erases the color of an image formed with color erasable recording agent serving as recording agent containing coloring agent the color of which can be erased by heating. The control section carries out a control, in a case where the image formed on the sheet is not an image formed with the color erasable recording agent, so that the sheet is not subjected to a color erasing processing by the color erasing section.Type: ApplicationFiled: May 27, 2014Publication date: December 3, 2015Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Kazuhisa Takeda, Tsuyoshi Itou, Masahiro Ikuta, Takafumi Hara, Motonari Udo, Takayasu Aoki, Yasuhito Noda
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Patent number: 9128394Abstract: An electrophotographic toner produced by mixing a dispersion of colorant particles containing a colorant and a dispersion of release agent particles containing a release agent and having a volume average particle diameter smaller than that of the colorant particles, aggregating the colorant particles and the release agent particles in the dispersion to produce first aggregates, mixing a dispersion of resin particles containing a binder resin and having a volume average particle diameter smaller than that of the release agent particles in the dispersion containing the first aggregates, and aggregating the first aggregates and the resin particles in the dispersion of the first aggregates and the resin particles to coat the first aggregates with the resin particles, producing second aggregates.Type: GrantFiled: October 31, 2012Date of Patent: September 8, 2015Assignee: Toshiba Tec Kabushiki KaishaInventors: Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Publication number: 20150168875Abstract: An image forming apparatus includes a first image forming unit configured to form a first image to be transferred to a sheet with a non-decolorizable material, and a second image forming unit configured to form a second image to be transferred to the sheet with a decolorizable material. At least a part of the second image transferred to the sheet is formed on the first image transferred to the sheet.Type: ApplicationFiled: December 18, 2013Publication date: June 18, 2015Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Motonari UDO, Masahiro IKUTA, Kazuhisa TAKEDA, Tsuyoshi ITOU, Takayasu AOKI, Takafumi HARA
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Patent number: 8940468Abstract: Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group in to the aqueous medium, and fusing the aggregates in the aqueous medium. As a result, it becomes possible to produce a decolorable toner which suppresses the generation of fine powder due to the release of fine particles of an erasable color material from the toner.Type: GrantFiled: June 29, 2012Date of Patent: January 27, 2015Assignee: Toshiba Tec Kabushiki KaishaInventors: Takayasu Aoki, Takafumi Hara, Tsuyoshi Itou, Masahiro Ikuta, Motonari Udo, Koji Shimokusa, Hiroshi Mizuhata
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Publication number: 20140234768Abstract: Provided is a method for producing a toner including: aggregating colorant particles and release agent particles, thereby forming aggregates containing the colorant particles and the release agent particles; aggregating binder resin particles and the obtained aggregates containing the colorant particles and the release agent particles, thereby forming toner particle precursors; and aggregating and fusing the obtained toner particle precursors, thereby forming toner particles, wherein when the average circularity of the toner particles is represented by Rt, Rt satisfies the following formula (1): 0.85?Rt?0.92 (1).Type: ApplicationFiled: March 13, 2014Publication date: August 21, 2014Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda
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Publication number: 20140212805Abstract: Provided is a decolorizable toner including a binder resin and colorant particles which contain a color developable compound, a color developing agent, and a decolorizing agent, and have a capsule structure coated with an outer shell, wherein the binder resin is contained in an amount of 60 to 80% by mass with respect to the total amount of the toner components.Type: ApplicationFiled: March 13, 2014Publication date: July 31, 2014Applicant: TOSHIBA TEC KABUSHIKI KAISHAInventors: Takafumi Hara, Masahiro Ikuta, Tsuyoshi Itou, Motonari Udo, Kazuhisa Takeda